1. Division of Urogynecology Department of Obstetrics and Gynecology, Linkou, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan, Taiwan, Republic of China
2. Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Taipei, Medical Center, Taipei, Taiwan, Republic of China
3. Chang Gung University, School of Medicine, Taoyuan, Taiwan, Republic of China
4. Department of Obstetrics and Gynecology, Mu'tah University, Al-Karak, Jordan
5. Department of Obstetrics & Gynecology, Subang Jaya Medical Centre, Subang Jaya, Selangor, Malaysia
6. Department of Obstetrics & Gynaecology, National University Hospital of Singapore, Singapore